His knowledge that the user, as it is based on the Network Applications.
Often, to provide essential services to network-based applications to users. These services are available in the network are among the most important elements to ensure the demand of the customers and the users are satisfied.
The collection of statistical data from routers, switches, servers and other network devices, you can decide whether a device is operating in accordance with the manufacturer. Are on the other hand, for the procedures are not sufficient to regulate success.
The success is based on, what are the customers, contractors and vendors, network performance is based. From the perspective of end users, application performance depends on the availability and responsiveness.
Application performance must combine customer satisfaction with the standard network parameters such as network performance, or the sum of positive transactions. Application for classification allows the network designer to combine business goals and technical specifications in the design of the network. The classification includes the practical work of network applications: 1 Behavior of applications in network 2 technical requirements of the application, 3 how applications work together on the network.
According to information gathered through the initial phases of the design process, the architect decides which applications are important for the company. The architect to assess how these applications work with the proposed network.
The classification process provides data on the use of bandwidth and response time for certain applications. These factors can really design decisions, such as the selection of the transmission medium or assessments required bandwidth.
Traffic from different applications produce different demands on the network. The network architect identifies four basic types of communication of the application: 1 From customer to customer, 2 Client-server distributed third Client to the server in the farm, 4 Client-to-edge companies. Day, is the first step in applications classification of data both from the network to collect as possible. This data collection contains first Entry into the organization, 2 Verification Network 3 Traffic analysis.
The organization of the input stream contains data about the network and verbal information for network administrators. An examination of the network collects data about network devices, monitors traffic, and shows the details of the current system design. Traffic analysis provides information about the protocols and applications use the network. It can be exposed to errors in the network design. For example, many high-bandwidth applications over the same link generate large amounts of traffic. This represents a potential bottleneck in the design of his.
I hope you flush the foundations of the impact of the application in network design!
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This access must be easy to use, and usually not Equivalent Privacy or Wi-Fi Wired. This invited users to join the network, the SSID must be configured to be transmitted.
A large number of points requested access devices use to use the Dynamic Host Configuration Protocol Server Host and record wireless monitor. Guest users have Wi-Fi network with a browser like Internet Explorer to access. The registration system is user information about the customer and the hardware address and then begins to record the Internet Protocol traffic. These systems require an application server on the same network segment as the access point.
Secure User
There is Wi-Fi devices on the market that does not allow remote user access. To protect access to the user, with a completely isolated from the WLAN infrastructure, which contains no guest access. The best approach is for internal users in different VLANs. In areas where there are protected to some wireless devices, media access control address filtering used to control access is limited. The edge of the enterprise is the area where the network links to the corporate network to external networks. Routers in the commercial offer connectivity between the inner edge of the site and the Internet are. It will also connect to remote users over the area of wireless network. Requirements of the project on the margins of society are different from those in the campus network.
The cost of bandwidth
Many local area networks based on Ethernet technology. On the other hand, WAN connectivity across the enterprise is often rented to a third party service providers. Because these services are very expensive alkylated, the available bandwidth in the WAN is often much less than the bandwidth offered to the LAN.
Quality of Service
Can make the difference in bandwidth between the LAN and WAN congestion. This congestion, bottlenecks are also called to make that data to form a line to edge routers. A QoS policy to manage and prevent plurality of data. Therefore, the planning and implementation of large-LAN connections can be complex.
Security
Because users are required to the network detected by the edge routers not always security at the periphery of the network. Intrusion Detection and stateful firewall filtering should be applied to protect the internal network from threats.
Remote Access
In many cases, LAN services to extend beyond the edge of the office and remote users. This approach has different requirements, given that the degree of public access to users who are connected to the LAN via the Internet.
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Provide high availability
In addition to providing an additional level of security, server clusters are often necessary to provide high availability of applications and services complex. A good network should be able to reduce the potential impact of disruptions. This defense may be the network administrator to business needs at all times.
Redundancy
To ensure high availability, the servers are connected redundantly to two different switches in the access layer. This design provides a route from the switch when the first server main surface fails. Changes to the distribution and core layers are also connected redundantly. Rapid Spanning Tree Protocol can also manage redundant Layer 2 links. A router that is using the Hot Standby Router Protocol in a position to provide support for Layer 3 redundancy and failover.
Virtualization
Several virtual servers can be installed on one physical server. Developed the physical server operating system, to support multiple virtual images. This design is called virtualization. Virtual Server in order to reduce service costs redundant, failover and load balancing for important network services.
Customer inquiries
Before scheduling an internal network of the architects of wireless LAN need to understand how to use the customer wants to Wi-Fi network.
The architect understands the requirements of the network of customer questions. The answers affect how a Wi-Fi has been designed and implemented.
If the architect does not get good answers to your questions or to fully recognize the needs of the customer, the installation of Wi-Fi will be difficult or impossible. For example, the obligation to provide unsecured access points are much less difficult to plan, to provide authenticated access to internal devices.
Plan physical network
In a traditional wireless networks, most of the energy goes through areas of physical network coverage.
The architect of the network creates a site survey to identify areas of coverage and find the best places to install wireless access points. This report defines the hardware access point and wireless capabilities of your favorite games. The architect must also decide whether the roaming between coverage areas that overlap can be supported.
Designing the logical network
Logical Network Planning Network architects usually causes the greatest difficulty. Customers often want to offer different levels of access for different users. In addition, wireless networks must be easy to use and protected. Determination of the desired properties has many different methods for the design and wireless networks. The free wireless access for visitors and secure wireless access for mobile workers are two basic requirements that companies have the edge.
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